package com.bang.study.adapter;

/**
 * @ClassName: MacComputer
 * @author: BANG
 * @Date: 2019/10/28 17:34
 * @Version: 1.0
 * @Modified By:
 * @Desc: TODO
 */
public class MacComputer implements Computer {
    @Override
    public String readSD(SDCard sdCard) {
        if (null == sdCard) {
            throw new NullPointerException();
        }
        return sdCard.readSD();
    }
}
